Microorganisms in the gut emerge as a potential determining factor for understanding the links between stress response and brain function. New findings highlight the role of gut microbiota as a central regulator of the stress-circadian axis.

Circadian rhythms are also apparent within our gastrointestinal tract. Two new mice studies show that circadian rhythm and clock genes may also affect intestinal immune cells by boosting the secretion of cytokines that help maintain proper balance of the intestinal barrier.

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